JERUSALEM, Israel - At least seven mild to moderate earthquakes rattled residents of northern Israel Thursday and Friday, as several months of increased seismic activity in the region continues.

The first quake, centered in southern Lebanon, was felt Thursday afternoon and measured 3.9 on the Richter scale.

Three other temblors struck early Thursday evening, and another three, the largest of which registered 3.8, shook the area on Friday morning.

"Our apartment is on the fourth floor and the entire house shook. The computer and TV screens shook, the couch shook. I have never felt such a thing before," a resident of the northern Israeli coastal city of Nahariya told YNet News.

Another resident said the shaking from one of the quakes lasted 10 to 15 seconds.

Although no damage or injuries have been reported, the latest quakes are a reminder of experts' warnings that the Middle East is due for a major earthquake in the next 50 years.

In March, people throughout Israel felt an earthquake that registered 5.3 on the Richter scale, the strongest quake in several years.